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Full Discussion: Help in awk/bash
Top Forums Shell Programming and Scripting Help in awk/bash Post 302750319 by Don Cragun on Monday 31st of December 2012 12:10:30 PM
Old 12-31-2012
Quote:
Originally Posted by bioinfo
Hi,
Thanks again for guidance. Smilie
Sorry, I did not mean to hurt anyone.

Most of your assumptions are correct and I wish to make some of them more clear:
2. The values of x are not in a sequence, but surely positive. For e.g. 2000, 7000, 3000, 1982480 (for bigger files) etc.
3. For each each value of first field (x) from o.txt and dividing it by 100, I wish to retreive corresponding entry from 11.txt ending with ENDMDL. That means, if the value of x is 1000.000, then I wish to divide it by 100 and then retreiving 10th entry from 11.txt.

Please explain the concept of rc. Smilie

Thanks again.
The script I provided in message #8 in this thread assumes that the first field in o.txt has the values 7000.000, 3000.000, and 1982400.000 (not 1982480.000 or 1982480) to get the 70th, 30th, and the 19,824th entry from 11.txt. If the 1st field in o.txt does not end with 00.000, the current script won't print anything for that line in o.txt. If you have values like 1982480 which is not evenly divisible by 100, you need to explain if the value is to be skipped, truncated, or rounded to determine which entry from o.txt to print? (In other words since there is no entry numbered 19,824.80, do you want nothing to be printed, do you want the result of the division truncated to return the 19,824th entry, or do you want it rounded to return the 19,825th entry?) Why did all entries in you sample o.txt file end with 00.000 if you are saying that the values in the value are sometimes integers and that the values aren't evenly divisible by 100?

The script I provided does not assume that the values in the first field from o.txt are in sequence; with the data you gave as a sample it will print the 1st, 20th, and 10th entries from 11.txt in that order.

In the script I provided, rc is the number entries that have been read from 11.txt plus one. So when the script starts reading lines from 11.txt, the lines will be accumulated into r[1] until after the line containing ENDMDL is added to the entry. Then rc will be incremented so that subsequent lines will be added to the next entry...
This User Gave Thanks to Don Cragun For This Post:
bioinfo
 

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LEARN ABOUT DEBIAN

trcs

trcs(1) 							   User Manuals 							   trcs(1)

NAME

       trcs - convert text files from one codeset to other

SYNOPSIS

       trcs -C | -l | -h

       trcs [-s] [-f input-codeset ] [-t output-codeset ] [ file ]...

DESCRIPTION

       trcs  is a program for translation of text files from one codeset to other.  When exact translation is impossible it tries to make approxi-
       mations.  For example pseudographic characters are approximated by ASCII characters in codesets that have no pseudographic  characters  and
       characters with diacritical marks are approximated by existing characters.

       If the option -s or --gen-script is given trcs will generate simple script that invokes tr(1) This is useful if you want to include this in
       your script or for faster conversion of many files.

       If none of -C, -s, -l, -h and their equivalents is given each file will be read assuming it is coded with codeset input-codeset On standard
       output  it will be recoded so to use codeset output-codeset If there is no file given trcs will act as filter.  Both input-codeset and out-
       put-codeset are case insensitive and default to `cp1251'.

OPTIONS

       -C, --copyright
	      Display copying conditions and warranty information.

       -s, --gen-script
	      Generates conversion script for given input and output encodings instead to convert text files.

       -l, --list
	      List all known codesets with their aliases.

       -h, --help
	      Display this help and exit.

       -f input-codeset, --from[=]input-codeset
	      Codeset of the source.

       -f output-codeset, --to[=]output-codeset
	      Codeset of the output.

EXAMPLES

       trcs -fcyrillic -t koi8-r letter.txt
	      Convert letter.txt from ISO-8859-5 (cyrillic) to KOI8-R and output the result on standard output.

       trcs --from cp437 --to=mik --gen-script >ibm2mik
	      Generates script ibm2mik for converting from CP437 to MIK.

       sh ibm2mik screen.txt
	      Convert screen.txt from CP437 to MIK.  Output the result on standard output.  Without parameters ibm2mik acts as filter.

AUTHOR

       Anton Zinoviev <anton@lml.bas.bg>, <zinoviev@fmi.uni-sofia.bg>

SEE ALSO

       tr(1)

Linux								     JUN 2000								   trcs(1)
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